AMD Phenom II X4 840 vs Intel Core i7-940
Comparative analysis of AMD Phenom II X4 840 and Intel Core i7-940 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).
Differences
Reasons to consider the AMD Phenom II X4 840
- CPU is newer: launch date 2 year(s) 2 month(s) later
- Around 5% higher maximum core temperature: 71°C vs 67.9°C
- 2x more L1 cache, more data can be stored in the L1 cache for quick access later
- 2x more L2 cache, more data can be stored in the L2 cache for quick access later
- Around 37% lower typical power consumption: 95 Watt vs 130 Watt
- 5.7x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.92 vs 0.508
- Around 67% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.91 vs 2.347
Specifications (specs) | |
Launch date | January 2011 vs November 2008 |
Maximum core temperature | 71°C vs 67.9°C |
L1 cache | 512 KB vs 64 KB (per core) |
L2 cache | 2 MB vs 256 KB (per core) |
Thermal Design Power (TDP) | 95 Watt vs 130 Watt |
Benchmarks | |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.92 vs 0.508 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 3.91 vs 2.347 |
Reasons to consider the Intel Core i7-940
- 4 more threads: 8 vs 4
- Around 1% better performance in PassMark - Single thread mark: 1310 vs 1298
- Around 22% better performance in PassMark - CPU mark: 2947 vs 2414
- Around 31% better performance in Geekbench 4 - Single Core: 512 vs 391
- Around 49% better performance in Geekbench 4 - Multi-Core: 1971 vs 1325
- 3.6x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 32.258 vs 8.884
- Around 20% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.191 vs 0.159
Specifications (specs) | |
Number of threads | 8 vs 4 |
Benchmarks | |
PassMark - Single thread mark | 1310 vs 1298 |
PassMark - CPU mark | 2947 vs 2414 |
Geekbench 4 - Single Core | 512 vs 391 |
Geekbench 4 - Multi-Core | 1971 vs 1325 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 32.258 vs 8.884 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.191 vs 0.159 |
Compare benchmarks
CPU 1: AMD Phenom II X4 840
CPU 2: Intel Core i7-940
PassMark - Single thread mark |
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PassMark - CPU mark |
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Geekbench 4 - Single Core |
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Geekbench 4 - Multi-Core |
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CompuBench 1.5 Desktop - Face Detection (mPixels/s) |
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CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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Name | AMD Phenom II X4 840 | Intel Core i7-940 |
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PassMark - Single thread mark | 1298 | 1310 |
PassMark - CPU mark | 2414 | 2947 |
Geekbench 4 - Single Core | 391 | 512 |
Geekbench 4 - Multi-Core | 1325 | 1971 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.92 | 0.508 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 8.884 | 32.258 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.159 | 0.191 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 3.91 | 2.347 |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 0.84 |
Compare specifications (specs)
AMD Phenom II X4 840 | Intel Core i7-940 | |
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Essentials |
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Architecture codename | Propus | Bloomfield |
Family | AMD Phenom | |
Launch date | January 2011 | November 2008 |
Launch price (MSRP) | $90 | $299 |
OPN PIB | HDX840WFGMBOX | |
OPN Tray | HDX840WFK42GM | |
Place in performance rating | 2861 | 2854 |
Price now | $89.95 | $70.70 |
Series | AMD Phenom II X4 | Legacy Intel® Core™ Processors |
Value for money (0-100) | 11.50 | 22.33 |
Vertical segment | Desktop | Desktop |
Processor Number | i7-940 | |
Status | Discontinued | |
Performance |
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64 bit support | ||
Base frequency | 3.2 GHz | 2.93 GHz |
Die size | 169 mm | 263 mm2 |
L1 cache | 512 KB | 64 KB (per core) |
L2 cache | 2 MB | 256 KB (per core) |
Manufacturing process technology | 45 nm | 45 nm |
Maximum core temperature | 71°C | 67.9°C |
Maximum frequency | 3.2 GHz | 3.20 GHz |
Number of cores | 4 | 4 |
Number of threads | 4 | 8 |
Transistor count | 300 million | 731 million |
Unlocked | ||
Bus Speed | 4.8 GT/s QPI | |
Front-side bus (FSB) | 1333 MHz | |
L3 cache | 8192 KB (shared) | |
Number of QPI Links | 1 | |
VID voltage range | 0.800V-1.375V | |
Memory |
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Supported memory types | DDR3 | DDR3 800/1066 |
Max memory channels | 3 | |
Maximum memory bandwidth | 25.6 GB/s | |
Maximum memory size | 24 GB | |
Compatibility |
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Max number of CPUs in a configuration | 1 | 1 |
Sockets supported | AM3 | FCLGA1366 |
Thermal Design Power (TDP) | 95 Watt | 130 Watt |
Low Halogen Options Available | ||
Package Size | 42.5mm x 45.0mm | |
Security & Reliability |
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Execute Disable Bit (EDB) | ||
Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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Enhanced Intel SpeedStep® technology | ||
Idle States | ||
Instruction set extensions | Intel® SSE4.2 | |
Intel 64 | ||
Intel® AES New Instructions | ||
Intel® Demand Based Switching | ||
Intel® Hyper-Threading technology | ||
Intel® Turbo Boost technology | ||
Physical Address Extensions (PAE) | 36-bit | |
Thermal Monitoring | ||
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® VT-x with Extended Page Tables (EPT) |